I can confirm Giles' solution. I have a Latitude D630 and just upgraded to Kubuntu 8.10. When using the Nvidia driver 177, the fan was continuously starting and stopping. My BIOS version was A08 but after upgrading to A13, the problem was fixed.
I can confirm Giles' solution. I have a Latitude D630 and just upgraded to Kubuntu 8.10. When using the Nvidia driver 177, the fan was continuously starting and stopping. My BIOS version was A08 but after upgrading to A13, the problem was fixed.